38709479 has 4 divisors (see below), whose sum is σ = 40746840. Its totient is φ = 36672120.

The previous prime is 38709469. The next prime is 38709481. The reversal of 38709479 is 97490783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97490783 = 13 ⋅7499291.

It is a cyclic number.

It is not a de Polignac number, because 38709479 - 2²⁴ = 21932263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38709409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1018652 + ... + 1018689.

It is an arithmetic number, because the mean of its divisors is an integer number (10186710).

Almost surely, 2^38709479 is an apocalyptic number.

38709479 is a deficient number, since it is larger than the sum of its proper divisors (2037361).

38709479 is a wasteful number, since it uses less digits than its factorization.

38709479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2037360.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 38709479 is about 6221.6942226374. The cubic root of 38709479 is about 338.2769778952.

The spelling of 38709479 in words is "thirty-eight million, seven hundred nine thousand, four hundred seventy-nine".